Search results for "Argo"
showing 10 items of 424 documents
El "Regent la Reial Tresoreria" al regne de Sardenya. Un ofici emblemátic de la Corona d'Aragó en la crui"lla deis canvis dinástics del segle XVIII
2010
La "Regencia la Reial Tresoreria" fue en Cerdeña una institución emblemática, homónima y homóloga a tantas otras existentes en los diversos territorios de la Corona de Aragón hasta los cambios políticos producidos con motivo de los conflictos dinásticos del inicio del siglo XVIII. El caso del reino sardo fue particular porque esta institución sobrevivirá a aquellos conflictos y continuará vigente bajo la administración de la nueva dinastía de los Saboya. A través de una aproximación prosopográfica a aquellos que ejercieron el cargo en la primera mitad de la centuria, evidenciamos no solo la división interna de las élites entre los partidarios de Carlos de Austria y los de Felipe de Borbón s…
The determinants of stakeholder engagement in digital platforms
2018
Abstract Consumer engagement has been heralded as strategic in facilitating sales growth, competitive advantage, and profitability. Expanding the notion of consumer engagement to the stakeholder context, this study examines the determinants of multi-stakeholder digital engagement. Based on a digital setting (Expo2015), this study collected all the social media posts (n = 984) in the Facebook page with restricted access to the stakeholders involved in the event. Initial regression results suggest that the presence of transformation, in terms of activation of creative resource integration in posts, is a strong predictor of compliant and interactive engagement. Fuzzy-set qualitative comparativ…
Numerical dating of the Eckfeld maar fossil site, Eifel, Germany: a calibration mark for the Eocene time scale.
2000
Sediments of the Eckfeld maar (Eifel, Germany) bear a well-preserved Eocene fauna and flora. Biostratigraphically, Eckfeld corresponds to the Middle Eocene mammal reference level MP (Mammals Paleogene) 13 of the ELMA (European Land Mammal Age) Geiseltalian. In the maar crater, basalt fragments were drilled, representing explosion crater eruption products. By 40Ar/39Ar dating of the basalt, for the first time a direct numerical calibration mark for an Eocene European mammal locality has been established. The Eckfeld basalt inverse isochron date of 44.3 +/- 0.4 Ma suggests an age for the Geiseltalian/Robiacian boundary at 44 Ma and, together with the 1995 time scale of Berggren et al., a time…
A microcalorimetric study of the different states of argon and nitrogen adsorbed AT 77 K on silicalite-I and ZSM-5
1992
The adsorption of argon and nitrogen on a series of MFI-type zeolites (silicalite-I (Si/Al>1000) and HZSM-5 (16<Si/Al<120)) was studied by isothermal microcalorimetry, volumetry and neutron diffraction.
A microcalorimetric comparison of the effect ofn-alkane preadsorption on the adsorption of argon and nitrogen on Silicalite-I
1994
Then-alkanes of different lengths were preadsorbed to selectively block part of the micropores of a MFI-type zeolite, Silicalite-I. The porosity available to argon and nitrogen was then studied by quasi-equilibrium adsorption microcalorimetry and volumetry at 77K and compared to what was found for the bare zeolite. Indeed, although partial adsorption ofn-alkanes does not alter the value of the differential enthalpies of adsorption for both argon and nitrogen, then-butane preadsorption diminishes the adsorption capacity by inducing inaccessible volumes in the micropore network. Moreover, the microcalorimetric experiments clearly show thatn-butane is not evenly distributed in the zeolite chan…
La cognificació de l'art
2018
The Cognification of Art Resum: Amb el terme “cognificacio”, un mot pres en prestec de l’argot de la Intel.ligencia Artificial, designo alguns dels processos pels quals les obres d’art han anat convertint-se cada cop mes en dispositius per a la generacio de coneixement. En particular, d’una banda, es tracta en aquest article dels fenomens d’artificacio d’objectes reals, com es el cas de la caixa de sabates de Gabriel Orozco, fenomens que es remunten als ready-mades de Duchamp i que es generalitzen en el darrer mig segle, i, de l’altra, el fenomen de les practiques d’investigacio artistica que s’han generalitzat en els darrers quinze anys, fenomen que alhora es d’artificacio de la recerca. A…
Measurement of rotational relaxation in the ground state of methane perturbed by argon at low temperature
1999
International audience; Relaxation processes at low temperature in methane perturbed by argon have been investigated on the basis of new measurements. Diode laser absorption spectra of methane in the region of the dyad nu2/nu4 in supersonic expansions have been recorded. The time of relaxation of the ground state mean rotational energy was derived from the observed dependences of the rotational temperature on the concentration in the jet. A semi-classical model was used to calculate the state-to-state relaxation rate constants at room temperature. The evaluation of the time of relaxation of the mean rotational energy using semi-empirical temperature dependence laws is presented and discusse…
An experimental and modeling study of the oxidation of 3-pentanol at high pressure
2019
International audience; High pressure oxidation of 3-pentanol is investigated in a jet-stirred reactor and in a shock tube. Experiments in the reactor were carried out at 10 atm, between 730 and 1180 K, for equivalence ratios of 0.35, 0.5, 1, 2, 4 and 1000 ppm fuel, at a constant residence time of 0.7 s. Reactant, product and intermediate species mole fractions were recorded using Fourier transform infrared spectroscopy (FTIR) and gas chromatography (GC). Ignition delay times were measured for 3-pentanol/O2 mixtures in argon in a shock tube at 20 and 40 bar, in a temperature range of 1000–1470 K and for equivalence ratios of 0.5, 1 and 2. The fuel did not show any low-temperature reactivity…
An argon ion beam milling process for native AlOx layers enabling coherent superconducting contacts
2017
We present an argon ion beam milling process to remove the native oxide layer forming on aluminum thin films due to their exposure to atmosphere in between lithographic steps. Our cleaning process is readily integrable with conventional fabrication of Josephson junction quantum circuits. From measurements of the internal quality factors of superconducting microwave resonators with and without contacts, we place an upper bound on the residual resistance of an ion beam milled contact of 50$\,\mathrm{m}\Omega \cdot \mu \mathrm{m}^2$ at a frequency of 4.5 GHz. Resonators for which only $6\%$ of the total foot-print was exposed to the ion beam milling, in areas of low electric and high magnetic …
El lenguaje del neng de castefa como estereotipo lingüístico de la subcultura dance y el argot juvenil actual
2007
Los hábitos sociales y lingüísticos del Neng de Castefa se corresponden con bastante claridad con la descripción sociológica de la subcultura dance que hacen Gamella y Álvarez (2002), así como con los datos lingüísticos sobre el argot juvenil actual en sus diversas tribus y subculturas que analizan Vigara (2002a, 2002b), Reyes y Vigara (2002), los datos léxicos aportados por los diccionarios de argot (Sanmartín 1998, Carbonell 2000, Ruiz 2001) e incluso las descripciones de los usos sintácticos y pragmáticos del español coloquial (Vigara 1992, Briz 1998, Herrero 2002). Por todo ello, tan sólo pretendemos que los datos obtenidos en este estudio sirvan de base y punto de partida para que soci…